6
Curiosity
Structure of Atoms
250+ practice questions available
Sample Practice Questions
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1
Easy
The maximum number of electrons that the K shell can hold is:
A1
B2
C8
D18
2
Easy
An isotope of uranium is used as:
AMedicine for goitre
BFuel in nuclear reactors
CTreatment for cancer
DA food preservative
3
Easy
An atom with 8 protons and 8 neutrons is an atom of:
ACarbon
BNitrogen
COxygen
DNeon
4
Medium
The electronic configuration of phosphorus (Z=15) is:
A2, 8, 5
B2, 5, 8
C2, 13
D15
5
Hard
When chlorine gains one electron, it becomes:
ACl+
BCl-
CCl2-
DNeutral Cl
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